Dental treatment device

Abstract

A device for treating a dental tissue with a continuous flow of ozone containing gas, comprising (a) an ozone generator ( 2 ) for generating an ozone containing gas, (b) a first pump ( 1 ) being in fluid flow communication with the ozone generator for generating a flow of ozone containing gas, (c) an applicator ( 3 ) for multiple teeth having a surface suitable for forming with the hard and soft dental tissue of multiple teeth to be treated a treatment chamber having an inlet orifice being in fluid flow communication with the ozone generator ( 2 ) and the first pump ( 1 ) and having an outlet orifice, and (d) a second pump ( 5 ) being in fluid flow communication with the outlet orifice of the applicator ( 3 ) for removing gas from the treatment chamber, whereby said second pump ( 5 ) has a second throughput and the first pump ( 1 ) has a first throughput whereby the ratio of the second throughput to the first throughput is at least 1.5:1.

1 . A device for treating a dental tissue with a continuous flow of ozone containing gas, comprising:
 (a) an ozone generator for generating an ozone containing gas;   (b) a first pump being in fluid flow communication with the ozone generator for generating a flow of ozone containing gas;   (c) an applicator for multiple teeth having a surface suitable for conforming to hard and soft dental tissue of multiple teeth to be treated;   wherein the applicator includes a treatment chamber having at least one inlet orifice being in fluid flow communication with the ozone generator and the first pump and having at least one outlet orifice; and   (d) a second pump being in fluid flow communication with the outlet orifice of the applicator for removing gas from the treatment chamber, whereby said second pump has a second throughput and the first pump has a first throughput whereby the ratio of the second throughput to the first throughput is at least 1.5:1.   
   
   
       2 - 3 . (canceled) 
   
   
       4 . The device according to  claim 1 , wherein the ozone containing gas generated by the ozone generator has an ozone concentration of from 50 to 20000 ppm. 
   
   
       5 . (canceled) 
   
   
       6 . The device according to  claim 1 , wherein the first pump has a pumping speed in the range of from 1 to 10 l/min. 
   
   
       7 . The device according to claim  3 , wherein the second pump has a pumping speed in the range of from 1.5 to 15 l/min. 
   
   
       8 . The device according to  claim 1 , further comprising: (e) a moisture trapping means downstream from the outlet orifice of the applicator and upstream from the second pump. 
   
   
       9 . The device according to  claim 1 , further comprising an ozone scavenging means downstream from the second pump. 
   
   
       10 . The device according to  claim 1 , further comprising a prefabricated applicator. 
   
   
       11 . A system for treating a dental tissue comprising a device according to  claim 1  and further comprising a plurality of applicators, preferably of different sizes. 
   
   
       12 . A method of treatment of a dental tissue, the method comprising:
 providing a continuous flow of ozone containing gas to dental tissue for a period of 30 seconds to 60 minutes.   
   
   
       13 . (canceled) 
   
   
       14 . The device according to  claim 1 , wherein the one or more control means periodically changes the ratio of the second throughput to the first throughput by interrupting the second pump, so that the speed and pressure of the continuous flow of ozone containing gas periodically changes in the treatment chamber, and
 further comprising one or more control means for controlling the throughput at least one of the first pump and second pump.   
   
   
       15 . The device according to  claim 10 , wherein the one or more control means periodically reduces the throughput followed by an increase of the throughout of the pump. 
   
   
       16 . The device according to  claim 11 , wherein the reduction and increase of the throughput occurs with a frequency of from 1 to 200 cycles per minutes. 
   
   
       17 . The method according to  claim 9 , wherein the continuous flow of ozone containing gas for a period of time in the range of from 30 seconds to 60 minutes is applied by periodically changing the flow speed and accordantly the pressure of the gas. 
   
   
       18 . The method according to  claim 13 , wherein providing a continuous flow of ozone containing gas to dental tissue is accomplished using the device of  claim 1 . 
   
   
       19 . The device according to  claim 1 , wherein the ozone generator, the first pump and the second pump are provided in a housing and whereby the housing further contains a reversibly sealable chamber being in fluid communication with the ozone generator, whereby the inner wall of the chamber at least partially comprises surfaces of the device exposed to the environment during use of the device for treating a dental tissue. 
   
   
       20 . The device according to  claim 15 , further comprising a means for controlling the operation of the ozone generator, the first pump and the second pump, when the reversibly sealable chamber is sealed. 
   
   
       21 . The device according to  claim 15 , wherein the reversibly sealable chamber may further contain the applicator, tubing or other contaminated devices. 
   
   
       22 . (canceled) 
   
   
       23 . The method according to  claim 9 , further comprising treating a surface of the device with ozone, said surface being exposed to the environment during use of the device for treating a dental tissue, and forming a portion of an inner wall of a reversibly sealable chamber being in fluid communication with the ozone generator. 
   
   
       24 . The method according to  claim 18 , wherein the treatment of the surface being exposed to the environment during use of the device for treating a dental tissue is controlled by a means for controlling the operation of the ozone generator, the first pump and the second pump, when the reversibly sealable chamber is sealed. 
   
   
       25 - 26 . (canceled) 
   
   
       27 . The device according to  claim 1 , wherein the one or more control means periodically changes the ratio of the second throughput to the first throughput in a range of from 6:1 to 1.5:1 so that the speed and/or pressure of the continuous flow of ozone containing gas periodically changes in the treatment chamber, and
 further comprising one or more control means for controlling the throughput at least one of the first pump and second pump.